Garbage collected without being shut down! ~*~*~* Make sure to call shutdown()/shutdownNow()

[amit-4-kumar]

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Bug description
Facing frequent issue of garbage collected . Although each call using - vertexApi.close()
ERROR i.g.i.ManagedChannelOrphanWrapper - ~* Previous channel ManagedChannelImpl{logId=1, target=us-central1-aiplatform.googleapis.com:443} was garbage collected without being shut down! *~
Make sure to call shutdown()/shutdownNow()
java.lang.RuntimeException: ManagedChannel allocation site
Environment
Please provide as many details as possible: Spring AI version, Java version, which vector store you use if any, etc
Spring AI version - 0.8.1-SNAPSHOT and Java - 17
Steps to reproduce

Minimal Complete Reproducible example
Please provide a failing test or a minimal complete verifiable example that reproduces the issue.
Bug reports that are reproducible will take priority in resolution over reports that are not reproducible.
sample code -
VertexAI vertexApi ;
String gcpAccessToken = getGCPAccessTokenByServiceAccount();
GoogleCredentials googleCredentials = new GoogleCredentials(new
AccessToken(
gcpAccessToken,
null));
vertexApi = new VertexAI(genAIConfig.getGcpProjectId(), genAIConfig.getGcpLocation(), googleCredentials);

ChatClient chatClient = new VertexAiGeminiChatClient(vertexApi,
VertexAiGeminiChatOptions.builder()

                    .withTemperature((Float) variables.get(Constants.TEMPERATURE_KEY))
                    .withModel(modelName)
                    .withMaxOutputTokens(8000)
                    .withTopP(1F)
                    .build());

ChatResponse chatResponse = chatClient.call(prompt);;// Error throwing at this line
if(vertexApi != null) {
vertexApi.close();
} .

Please share sample code that can fix or handle above issue in . Also application handles multiple request per minutes.